DE3566043D1 - Improvements in the measurement of impedance ratios - Google Patents

Improvements in the measurement of impedance ratios

Info

Publication number
DE3566043D1
DE3566043D1 DE8585301562T DE3566043T DE3566043D1 DE 3566043 D1 DE3566043 D1 DE 3566043D1 DE 8585301562 T DE8585301562 T DE 8585301562T DE 3566043 T DE3566043 T DE 3566043T DE 3566043 D1 DE3566043 D1 DE 3566043D1
Authority
DE
Germany
Prior art keywords
measurement
impedance ratios
impedance
ratios
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8585301562T
Other languages
German (de)
Inventor
Christopher Israel Daykin
John David Yewen
Peter Caleb Frederi Wolfendale
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUTOMATIC SYST LAB Ltd
Original Assignee
AUTOMATIC SYST LAB Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AUTOMATIC SYST LAB Ltd filed Critical AUTOMATIC SYST LAB Ltd
Application granted granted Critical
Publication of DE3566043D1 publication Critical patent/DE3566043D1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE8585301562T 1984-03-09 1985-03-07 Improvements in the measurement of impedance ratios Expired DE3566043D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08406160A GB2155644B (en) 1984-03-09 1984-03-09 Improvements in the measurement of impedance ratios

Publications (1)

Publication Number Publication Date
DE3566043D1 true DE3566043D1 (en) 1988-12-08

Family

ID=10557820

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585301562T Expired DE3566043D1 (en) 1984-03-09 1985-03-07 Improvements in the measurement of impedance ratios

Country Status (3)

Country Link
EP (1) EP0159786B1 (en)
DE (1) DE3566043D1 (en)
GB (1) GB2155644B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584822B1 (en) * 1985-07-09 1988-06-17 Thomson Csf DEVICE FOR MEASURING THE REPORT OF TWO CAPACITIES OF LOW VALUES
GB8808614D0 (en) * 1988-04-12 1988-05-11 Renishaw Plc Displacement-responsive devices with capacitive transducers
FR2682768A1 (en) * 1991-10-21 1993-04-23 Otic Fischer & Porter METHODS OF CONVERTING IMPEDANCE REPORTS APPLICABLE TO MEASURING DEVICES, IN PARTICULAR TO INDUSTRIAL PRESSURE TRANSMITTERS, AND THEIR IMPLEMENTING DEVICES.
DE10041331B4 (en) * 2000-08-23 2004-10-28 Siemens Ag Generation method for an output clock and clock generation circuit corresponding therewith

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187459A (en) * 1978-02-13 1980-02-05 Automatic Systems Laboratories Limited Digital measurement of impedance ratios
GB2036982B (en) * 1978-10-04 1982-12-01 Automatic Systems Lab Ltd Electrical impedance ratios

Also Published As

Publication number Publication date
GB2155644B (en) 1988-04-20
EP0159786B1 (en) 1988-11-02
EP0159786A1 (en) 1985-10-30
GB2155644A (en) 1985-09-25
GB8406160D0 (en) 1984-04-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee